[touisteur]

Nice, do you know whether this DSL was ever used successfully fir other endeavours (abstract interpretation, lowering to Why3, any kind of symbolic execution? or a language server?). I've been looking for a 'flex/bison with complete semantics' and it might be a piece of the puzzle.

[abecedarius]

I don't know -- there were at least a couple papers about it, but I haven't been following. At the time it was first announced I used some of the ideas in one of my projects (https://github.com/darius/idel/blob/master/src/opcodes.awk) but unfortunately didn't develop it further.